Patents by Inventor Philip B. Davis
Philip B. Davis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10006944Abstract: An optical sensor assembly that senses current in a secondary electrical cable while sensing voltage in a primary electrical cable. The optical sensor assembly may include a sensor body, a concentrator core for measuring current. The concentrator core may be attached to a first end of the sensor body. The optical sensor assembly may include a plurality of extension arms that extend from the sensor body. The extension arms may include clamping devices on one end that are configured to attach to a first electrical cable. The concentrator core may be configured to at least partially surround a second electrical cable and sense the current from that second electrical cable.Type: GrantFiled: November 6, 2017Date of Patent: June 26, 2018Assignee: GRIDVIEW OPTICAL SOLUTIONS, LLC.Inventors: Philip B. Davis, Ye Li, Theodore C. Konetski, Anthony Fiorille, William Laratta, Atul Pradhan, Michael Oshetski
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Publication number: 20180059144Abstract: An optical sensor assembly that senses current in a secondary electrical cable while sensing voltage in a primary electrical cable. The optical sensor assembly may include a sensor body, a concentrator core for measuring current. The concentrator core may be attached to a first end of the sensor body. The optical sensor assembly may include a plurality of extension arms that extend from the sensor body. The extension arms may include clamping devices on one end that are configured to attach to a first electrical cable. The concentrator core may be configured to at least partially surround a second electrical cable and sense the current from that second electrical cable.Type: ApplicationFiled: November 6, 2017Publication date: March 1, 2018Applicant: GRIDVIEW OPTICAL SOLUTIONS, LLC.Inventors: Philip B. Davis, Ye Li, Theodore C. Konetski, Anthony Fiorille, William Laratta, Atul Pradhan, Michael Oshetski
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Patent number: 9817038Abstract: An optical sensor that senses current by directing polarized light across an airgap that is orthogonal to a direction of current running through a conductor. The sensor includes a prism having a high Verdet constant for high sensitivity to magnetic fields, which cause an angle of polarization of the polarized light to be rotated as an indication of the magnitude of current. A polarizing beamsplitter having a low Verdet constant is mounted to the prism so that incoming light that is traveling in a direction orthogonal to the magnetic field being sensed across the airgap is insensitive to unwanted magnetic fields produced by nearby conductors. The distance the light travels in this orthogonal direction is minimized, reducing the overall volume of the sensor, making a compact sensor highly sensitive to magnetic fields of interest, largely insensitive to unwanted magnetic fields, and having a very high dynamic range for sensing current.Type: GrantFiled: December 23, 2016Date of Patent: November 14, 2017Assignee: GRIDVIEW OPTICAL SOLUTIONS, LLC.Inventors: Philip B. Davis, Ye Li, Theodore C. Konetski
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Publication number: 20170108540Abstract: An optical sensor that senses current by directing polarized light across an airgap that is orthogonal to a direction of current running through a conductor. The sensor includes a prism having a high Verdet constant for high sensitivity to magnetic fields, which cause an angle of polarization of the polarized light to be rotated as an indication of the magnitude of current. A polarizing beamsplitter having a low Verdet constant is mounted to the prism so that incoming light that is traveling in a direction orthogonal to the magnetic field being sensed across the airgap is insensitive to unwanted magnetic fields produced by nearby conductors. The distance the light travels in this orthogonal direction is minimized, reducing the overall volume of the sensor, making a compact sensor highly sensitive to magnetic fields of interest, largely insensitive to unwanted magnetic fields, and having a very high dynamic range for sensing current.Type: ApplicationFiled: December 23, 2016Publication date: April 20, 2017Applicant: GRIDVIEW OPTICAL SOLUTIONS, LLC.Inventors: Philip B. Davis, Ye Li, Theodore C. Konetski
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Patent number: 9535097Abstract: An optical sensor that senses current by directing polarized light across an airgap that is orthogonal to a direction of current running through a conductor. The sensor includes a prism having a high Verdet constant for high sensitivity to magnetic fields, which cause an angle of polarization of the polarized light to be rotated as an indication of the magnitude of current. A polarizing beamsplitter having a low Verdet constant is mounted to the prism so that incoming light that is traveling in a direction orthogonal to the magnetic field being sensed across the airgap is insensitive to unwanted magnetic fields produced by nearby conductors. The distance the light travels in this orthogonal direction is minimized, reducing the overall volume of the sensor, making a compact sensor highly sensitive to magnetic fields of interest, largely insensitive to unwanted magnetic fields, and having a very high dynamic range for sensing current.Type: GrantFiled: May 15, 2014Date of Patent: January 3, 2017Assignee: GRIDVIEW OPTICAL SOLUTIONS, LLC.Inventors: Philip B. Davis, Ye Li, Theodore C. Konetski
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Patent number: 9347973Abstract: A stress control apparatus for managing effects caused by electrical stress in a high voltage environment, and methods of manufacturing the apparatus. A dielectric tube with a central bore coated with a conductive material has an outer conductive coating on a lower section that is grounded. The central bore carries a high voltage potential from a current-carrying conductor. The grounded coating transitions to the exposed outer dielectric surface along a gradually tapered transition. A conductive insert connects to the central bore and forms an electric field in a space between the insert and the grounded coating. When coated with an epoxy and inserted into the central bore, the insert forms a small gap between an outer surface of the insert and part of the central bore, such that there is no zero potential difference in the gap. Any epoxy that oozes out during insertion will collect in the gap.Type: GrantFiled: May 15, 2014Date of Patent: May 24, 2016Assignee: Gridview Optical Solutions, LLCInventors: Philip B. Davis, Edward B. Condon, Grant E. Kenworthy
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Patent number: 9146358Abstract: A collimator holder in the form of a glass or ceramic block that has precisely machined holes formed in the block to receive respective collimator assemblies. Each collimator assembly includes an optical fiber attached to a GRIN lens by a ferrule. Optionally, each collimator assembly can include a glass tube that surrounds at least the lens and optionally part or all of the ferrule. The lens or the tube is inserted into the hole and bonded therein by an epoxy. The block, together with the collimator assemblies installed, is bonded to the bottom surface of a crystal assembly thereby forming an electro-optic sensor. The crystal assembly can include one or more polarizing beam splitters, an electro-optic crystal, and a prism, configured to sense a current through a current-carrying cable or a voltage between the cable and another potential.Type: GrantFiled: July 16, 2013Date of Patent: September 29, 2015Assignee: GRIDVIEW OPTICAL SOLUTIONS, LLCInventors: Philip B. Davis, Ye Li
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Publication number: 20150023629Abstract: A collimator holder in the form of a glass or ceramic block that has precisely machined holes formed in the block to receive respective collimator assemblies. Each collimator assembly includes an optical fiber attached to a GRIN lens by a ferrule. Optionally, each collimator assembly can include a glass tube that surrounds at least the lens and optionally part or all of the ferrule. The lens or the tube is inserted into the hole and bonded therein by an epoxy. The block, together with the collimator assemblies installed, is bonded to the bottom surface of a crystal assembly thereby forming an electro-optic sensor. The crystal assembly can include one or more polarizing beam splitters, an electro-optic crystal, and a prism, configured to sense a current through a current-carrying cable or a voltage between the cable and another potential.Type: ApplicationFiled: July 16, 2013Publication date: January 22, 2015Inventors: Philip B. Davis, Ye Li
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Publication number: 20140340806Abstract: A stress control apparatus for managing effects caused by electrical stress in a high voltage environment, and methods of manufacturing the apparatus. A dielectric tube with a central bore coated with a conductive material has an outer conductive coating on a lower section that is grounded. The central bore carries a high voltage potential from a current-carrying conductor. The grounded coating transitions to the exposed outer dielectric surface along a gradually tapered transition. A conductive insert connects to the central bore and forms an electric field in a space between the insert and the grounded coating. When coated with an epoxy and inserted into the central bore, the insert forms a small gap between an outer surface of the insert and part of the central bore, such that there is no zero potential difference in the gap. Any epoxy that oozes out during insertion will collect in the gap.Type: ApplicationFiled: May 15, 2014Publication date: November 20, 2014Applicant: Mark Weisbart as Trustee for the Bankruptcy Estate of Optisense Networks LLCInventors: Philip B. Davis, Edward B. Condon, Grant E. Kenworthy
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Publication number: 20140300341Abstract: An optical sensor that senses current by directing polarized light across an airgap that is orthogonal to a direction of current running through a conductor. The sensor includes a prism having a high Verdet constant for high sensitivity to magnetic fields, which cause an angle of polarization of the polarized light to be rotated as an indication of the magnitude of current. A polarizing beamsplitter having a low Verdet constant is mounted to the prism so that incoming light that is traveling in a direction orthogonal to the magnetic field being sensed across the airgap is insensitive to unwanted magnetic fields produced by nearby conductors. The distance the light travels in this orthogonal direction is minimized, reducing the overall volume of the sensor, making a compact sensor highly sensitive to magnetic fields of interest, largely insensitive to unwanted magnetic fields, and having a very high dynamic range for sensing current.Type: ApplicationFiled: May 15, 2014Publication date: October 9, 2014Applicant: Mark Weisbart as Trustee for the Bankruptcy Estate of Optisense Networks LLCInventors: Philip B. Davis, Ye Li, Theodore C. Konetski
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Publication number: 20140212100Abstract: Structure is provided for controlling the electrical stress on one or more optical fibers in a high voltage environment.Type: ApplicationFiled: January 26, 2013Publication date: July 31, 2014Applicant: OPTISENSE NETWORK, LLCInventors: Philip B. Davis, Stephen Prince, Grant Kenworthy, Edward Condon
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Patent number: 8774587Abstract: Structure is provided for controlling the electrical stress on one or more optical fibers in a high voltage environment.Type: GrantFiled: January 26, 2013Date of Patent: July 8, 2014Inventors: Philip B. Davis, Stephen Prince, Grant Kenworthy, Edward Condon
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Patent number: 8040831Abstract: A system and method for managing control information in a wireless communications system. The method comprises broadcasting a predetermined number of preambles through beamforming from a base station, detecting, by a subscriber station, a predetermined frame associated with one selected preamble that has the highest power level, and identifying one or more subcarriers for carrying control information through the selected preamble.Type: GrantFiled: February 27, 2006Date of Patent: October 18, 2011Assignee: Cisco Technology, Inc.Inventors: Brian L. Kurtz, Hang Jin, Weidong Yang, Daniel Wee, Philip B. Davis, John Grabner
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Patent number: 7502355Abstract: A radio frequency (RF) power combiner for connecting multiple base transceiver stations with one antenna assembly includes at least one combining device coupled to at least two base transceiver stations for combining signals generated thereby into a combined signal for being transmitted by the antenna assembly. At least one frequency selective RF power detector is coupled to one of the signals generated from one of the base transceiver stations for generating an output indicating whether the signal at a predetermined frequency is present. A logic control module is coupled to the frequency selective RF power detector for generating a control signal in response to the output of the detector. An oscillator is coupled to the logic control module for generating a carrier signal at the predetermined frequency for the combined signal in response to the control signal.Type: GrantFiled: February 22, 2006Date of Patent: March 10, 2009Assignee: Cisco Technology, Inc.Inventors: George Bednekoff, Philip B. Davis, Michael A. Hinz, Viet Huynh, Mitchell K. Johnson
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Publication number: 20080167075Abstract: A system and method for managing control information in a wireless communications system. The method comprises broadcasting a predetermined number of preambles through beamforming from a base station, detecting, by a subscriber station, a predetermined frame associated with one selected preamble that has the highest power level, and identifying one or more subcarriers for carrying control information through the selected preamble.Type: ApplicationFiled: February 27, 2006Publication date: July 10, 2008Inventors: Brian L. Kurtz, Hang Jin, Weidong Yang, Daniel Wee, Philip B. Davis, John Grabner
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Publication number: 20040194638Abstract: A filled waffle product and method of preparing same is disclosed. The filled waffle product comprises an outer casing and a filling material. The outer casing is essentially comprised of flour, eggs, and a liquid. The filling material is comprised of cooked chicken pieces or other edible materials. The filling materials may be used individually or in combination one with the other. The filled waffle product is prepared by adding an amount of raw batter and filling material to a preheated baking mold, closing the baking mold, and heating the batter in the baking mold to at least partially cook the batter and substantially encapsulate the filling material in the batter. The filled waffle product is then removed from the baking mold for immediate consumption, or frozen and packaged for storage and later consumption.Type: ApplicationFiled: April 1, 2003Publication date: October 7, 2004Inventor: Philip B. Davis